/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Parameterization/DynamicMeshUVEditor.h
Pack specific UVs triangles into the specific unit rectangle at the specified index
bool UDIMPack ( int32 TargetTextureResolution, float GutterSize, const [FVector2i](API\Runtime\GeometryCore\FVector2i) & UDIMCoordsIn, const [TArray](API\Runtime\Core\Containers\TArray)< int32 > * Triangles )